Class: DiffNews::Service

Inherits:
Object
  • Object
show all
Defined in:
lib/service.rb

Direct Known Subclasses

FAZ, MockService, NZZ, Tagesanzeiger, ZwanzigMinunten

Constant Summary collapse

@@services = 
[]
@@store_class = 
DefaultHistory

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(url) ⇒ Service

Returns a new instance of Service.



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# File 'lib/service.rb', line 46

def initialize url
  @url = url
  @uuid = UUIDTools::UUID.sha1_create(UUIDTools::UUID_URL_NAMESPACE, url)
  @doc = nil
  load_history
end

Instance Attribute Details

#history ⇒ Object (readonly)

Returns the value of attribute history.



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# File 'lib/service.rb', line 17

def history
  @history
end

Class Method Details

.create(url) ⇒ Object

Raises:



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# File 'lib/service.rb', line 57

def self.create url
  match = @@services.select { |s| url =~ s.valid_url }
  raise UnknownNewspageError if match.none?

  match.first.new url
end

.register_service ⇒ Object 



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# File 'lib/service.rb', line 53

def self.register_service
  @@services << self
end

.services ⇒ Object 



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# File 'lib/service.rb', line 22

def self.services
  @@services
end

.store_class=(store_class) ⇒ Object 



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# File 'lib/service.rb', line 42

def self.store_class= store_class
  @@store_class = store_class
end

Instance Method Details

#base_url ⇒ Object 



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# File 'lib/service.rb', line 30

def base_url
  self.class.base_url
end

#current_revision ⇒ Object 



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# File 'lib/service.rb', line 38

def current_revision
  return @history.revisions.last
end

#encoding ⇒ Object 



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# File 'lib/service.rb', line 34

def encoding
  @doc.encoding
end

#normalize_text(text) ⇒ Object 



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# File 'lib/service.rb', line 70

def normalize_text text
  empty_lines = 0
  result = ''
  text.each_line do |line|
    line = line.strip
    line = line.gsub(/\s+/, ' ')
    empty_lines = line.length == 0 ? empty_lines + 1 : 0
    if empty_lines < 2
      result += line.strip + "\n"
    end
  end
  return result
end

#provider ⇒ Object 



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# File 'lib/service.rb', line 26

def provider
  self.class.provider
end

#strip_html(partial) ⇒ Object 



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# File 'lib/service.rb', line 64

def strip_html partial
  partial.css("br").each { |node| node.replace("\n") }
  partial.css("p").each { |node| node.replace("#{node.text.strip}\n\n") }
  partial.text.strip
end